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gic at fdt: Don't assume all irqs are established on disestablish. 

Fixes panic on detach of PCI devices on pcihost.
This commit is contained in:
riastradh 2022-08-11 13:04:35 +00:00
parent 25af48d0b5
commit 0edd94c75f
1 changed files with 3 additions and 3 deletions
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6
sys/arch/arm/fdt/gic_fdt.c
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@ -1,4 +1,4 @@
/* $NetBSD: gic_fdt.c,v 1.24 2021/11/04 21:31:30 jakllsch Exp $ */
/* $NetBSD: gic_fdt.c,v 1.25 2022/08/11 13:04:35 riastradh Exp $ */
/*-
* Copyright (c) 2015-2017 Jared McNeill <jmcneill@invisible.ca>
@ -29,7 +29,7 @@
#include "pci.h"
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: gic_fdt.c,v 1.24 2021/11/04 21:31:30 jakllsch Exp $");
__KERNEL_RCSID(0, "$NetBSD: gic_fdt.c,v 1.25 2022/08/11 13:04:35 riastradh Exp $");
#include <sys/param.h>
#include <sys/bus.h>
@ -328,7 +328,7 @@ gic_fdt_disestablish(device_t dev, void *ih)
for (n = 0; n < GIC_MAXIRQ; n++) {
firq = sc->sc_irq[n];
if (firq->intr_ih != ih)
if (firq == NULL || firq->intr_ih != ih)
continue;
KASSERT(firq->intr_refcnt > 0);